Otto schubert



(No Model.)

0. 'SGHUBERT. SELF CLOSING WATER TAP.

No. 470,510. Patented Mar. 8, 1892.

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OTTO SCHUBERT, OF HANOVER, GERMANY.

SELF-CLOSING WATER-TAP.

SPECIFICATION forming part of Letters Patent No. 470,510, dated March 8,1892.

Application filed August 27, 1891. Serial No. 403,923. (No model.)

T0 61/ whom it may concern: 7

Be it known that I, Orro SCHUBERT, a resident of Hanover, in the Kingdomof Prussia, German Empire, have invented a new and use fulSelf-ClosingWater-Tap, of which the following is a specification,reference being had therein to the accompanying drawings.

This invention relates to a self closing water-tap.

The automatically closing water supply cocks hitherto used have inpractice a great many defects, their construction being too complicated,while they cannot be relied on when operating. Moreover, their passagesare generally too narrow and are often obstructed, thuscausing greatinconvenience, so that these apparatus have to be abandoned as notfulfilling their object. The automatically-closing water-supply cockconstituting this invention and hereinafter described is en- 'tirelyfree from the above-mentioned defects.

In the accompanying drawings, Figures 1 and 2 are cross-sections of thewater-supply cock, showing the inner closing part in an open position,while Fig. 3 shows the same in a closed position. Fig. 4 is across-section of the closing part, showing the spindle. Fig. '5 is aside View of the whole apparatus.

The invention consists of the part A, the casing B, and the closingpart. (Shown in Fig. 4.) The casing B surrounds the lower part of A andis readily movable up and down, being guided by the screw 7 and the slotn.

The closing part consists of the spindle a and the disks 0 and block 19,firmly soldered in slots formed in the said spindle, and is insertedfrom below in the part A.; The hol low, loose, and movableindia-rubbercylinder d, carrying .inwardlya bush-sheath r, is first passed over thespindle a, being followed by a plug .2, furnished with a conical end,1), then by'a disk e, resting upon a shoulder of the said plug, andfinally by the piston-like disk b,with outlets s. The whole of thisclosing part can be easilyinserted in a'vertical direction in the partA, which is closed air-tight at the top by a lid or cover screwedthereon. WVhen the cock is closed, the closing part can only sink slowlyby reason of the pressure of the outflowing Water on the piston b andplate 6, as the india-rubber plate 6 does not allow the water to'passthrough to the upper side. The first closing is effected by theindia-rubber cylinder d making contact at m, while the second closingtakes place subsequently above this point by the india-rubber cylinderor plug d by the conical end *2).

It is noteworthy that this water-closing apparatus is furnished in themanner above described with two closing devices, whereby the greatestsecurity is afforded toward obtaining an unfailing gradual closingaction.

When the cock is opened, the casing B is up, as in Fig. 1, and with itthe closing part, this being eifected by the inner tubular piece. Thesmallpassage about the cone 1;, above the cylinder d, is first opened,and when the spindie a has been raised with the cone the disk 0 strikesin its upward motion against the sheath of the india-rubber cylinder andcarries the latter upward. The outlet-opening,

and with it the overflo'wof water, can be in-- creased through conicalside depressions or recesses it, formed in the cylinder d, moving in thecylindrical box of the body or chamber D, Fig. 1, or without lateraldepressions or recesses in the cylinder by forming the chamber with-aconical box, as in Figs. 2 and By releasing the-cock the casing-B slidesquickly down. The closing part follows closely after. The first closingis effected by the india-rubber cylinder 01 at m. The second closingoccurs gradually at the top of the india-rubber cylinder d through theagency of the conical appendage 1). Owing to the graduallyreducedoutflow due to the arrangement of the india-rubber cylinder furnishedwith lateral depressions or recesses 11. and moving in the cylindricalchamber or box D,Fig. 1, orof the india-rubber cylinder without lateraldepressions or recesses moving in the conical chamber or box D, Figs. 2and 3, in combination with the subsequent closing by the conicalappendage 'u of the spindle a, the back wash or flow of the water in thepipes is avoided. The raising or lifting is very soft, so that even theweakest hand can open the cock with ease.

The new cock operates faultlessly in all cases without ever becomingobstructed. It

is of very simple construction, while yet very solid, and, although ofcheap manufacture, presents an elegant appearance.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is-

y 1. In combination, the main casing A, the sliding casing B, arrangedto move thereon, the box or chamber D within the casing A, having a seatm, the spindle at, extending Within the casing A and connected to thesliding casing 13, the flexible cylinder (1, carried loosely by thespindle, the disk 0 on the spindle for raising the cylinder, the plug .2on the spindle above the flexible cylinder, having a conical end 1;adapted to fit within the end'ot' said cylinder, the piston-disk b,h'avingopenings, and the plate e to close the same, said disk and platevbeing carried -by the spin d le a, substantially as described.

2.. In combinatiomihe casing A, having the box D with the seat m, thesliding casing B, the movable casing on the outside of the easing A, thespindle a withinv the casing A and connected to the casing B, the loosecylinder 01 of flexible material on the spindle, adapted to the seat m,the plug z above the cylinder, having a conical end adapted to fitwithin the cylinder, and the disk 0 on the spindle for raising thecylinder, substantially as described.

3. In combination, the casing A, having a box D with a seat m, thecasing B, sliding on the casing A, the spindle a, connected thereto, theflexible cylinder d, loosely carried by the spindle, the disk 0 forraising the cylinder,

and the plug above the cylindely'having a conical end adapted to fitwithin the opening of the cylinder, the said cylinder having thedepressions u in its side, substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

OTTO SOHUBERT. Witnesses:

AUGUST LEMIER, DANIEL TRICK.

